1. It will adsorb up to 34%of its own weight in water vapour. This adsorption efficiency is approximately 30greater than typical desiccant clays, making silica gel the preferred choice where weight or efficiency areimportant factors.

2. It has an almost indefinite shelf life if stored in airtight conditions.

3. It can be regenerated and reused if required. Gently heating silica gel will drive off the adsorbed moisture

and leave it ready for reuse.

4. It is a very inert material, it will not normally attack or corrode other materials and with the exception of

strong alkalis and hydrofluoric acid is itself resistant to attack.

5. It is non-flammable.

6. It is most frequently and conveniently used packed in a breathable sachet or bag. These are available in a wide range of sizes suitable for use with a wide range of applications.